CN201891069U - Through steel pipe-concrete open type truss combination beam bridge - Google Patents
Through steel pipe-concrete open type truss combination beam bridge Download PDFInfo
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- CN201891069U CN201891069U CN2010205721899U CN201020572189U CN201891069U CN 201891069 U CN201891069 U CN 201891069U CN 2010205721899 U CN2010205721899 U CN 2010205721899U CN 201020572189 U CN201020572189 U CN 201020572189U CN 201891069 U CN201891069 U CN 201891069U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 239000004567 concrete Substances 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 239000011513 prestressed concrete Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a through steel pipe-concrete open type truss combination beam bridge, which consists of top booms, bottom booms, truss beams and a bridge surface. The bottom booms are two parallel concrete structural rods, middle crossbeams are transversely arranged between the two bottom booms, a pitch between each two middle crossbeams is not smaller than 1/2 of the pitch between connection points of a web member and each bottom boom but is not larger than 6m. Two ends of the two bottom booms are connected with end crossbeams, trusses are respectively disposed on vertical surfaces of the two bottom booms, the top booms are arranged at the tops of the trusses, and each web member is connected between each top boom and the corresponding bottom boom. The through steel pipe-concrete open type truss combination beam bridge adopts a prestressed concrete bridge surface system and the steel pipe concrete top booms, reduces utilization of steel, lowers project cost and is fast in construction speed. The height of midspan construction is only 1/50 of that of span. The through steel pipe-concrete open type truss combination beam bridge is high in crossing ability and bearing capacity and low in construction height, and can realize 'low height' of a highway main bridge structure in a plain terrain. The utility model can be widely used on important bridges with higher requirements to appearance and clear height.
Description
Technical field
The utility model relates to the combined type beam bridge.Be a kind of lower support type steel pipe-concrete open type truss composite beam bridge specifically.
Background technology
In recent years, along with the development of bridge technology and design theory, because of combining structure with its whole stressed economy, the reasonability of material advantage and be convenient to multiple advantage such as construction and in bridge engineering, be widely used.Advantages such as the open type trussed bridge is as a kind of bridge construction form, and, easy construction low because of its cost, building height are low just once occurred in the evolution of bridge and flourish in early days, were widely used in railroad bridge and the port works.Later stage is in view of the increase in the strength of materials, bridge span footpath, and to the factors such as restriction such as not deep enough of truss lateral buckling research, the development of open type trussed bridge once stagnated.
Nowadays, along with improving constantly of the fast development of various new materials, construction level, and people are for the deepening continuously of different types of rridges structural research, and the open type trussed bridge also obtains significant progress.
No matter existing open type trussed bridge is highway bridge or railroad bridge, the common form of open type trussed bridge is welded truss beam, the bolt girder truss of all steel, or existing welding has the bolt weldering girder truss of bolt again, its major defect is to use full steel structure, rolled steel dosage is big, and the cost height has also had the general character shortcoming of steel bridge, as the rut of fatigue of steel structures, paving steel bridge deck, the disease that ftractures etc., these shortcomings have all limited application and the development of open type trussed bridge in highway bridge.
The utility model content
In order to overcome the shortcoming of existing open type trussed bridge, simultaneously also in order to continue the advantage of traditional open type trussed bridge, the utility model provides a kind of lower support type steel pipe-concrete open type truss composite beam bridge,
Lower support type steel pipe-concrete open type truss composite beam bridge, form by upper chord 1, lower chord 2, girder truss, bridge floor, described lower chord is two parallel concrete structure bars, article two, laterally be provided with the vertical middle cross beam 5 that is connecting lower chord between the lower chord, the spacing of described middle cross beam 5 is not less than 1/2 of web member and lower chord tie point spacing, and be not more than 6m, lay bridge deck 10 on middle cross beam 5 end faces; Article two, lower chord 2 two ends are connected with the end floor beam 6 that is parallel to middle cross beam 5; Be respectively equipped with truss on the facade of described two lower chords 2, the top of truss is provided with upper chord 1, is connecting the web member 3 of forming triangular structure between upper chord 1 lower chord 2 corresponding with it; The two ends of described upper chord 1 are connecting the two ends of corresponding lower chord 2 by end brace 4; Described upper chord 1 and end brace 4 are major diameter welding straight-line joint steel pipe.
Described upper chord 1 and end brace 4 are single round steel pipe structure, and steel pipe adopts the major diameter welding straight-line joint steel pipe of typing, and casing pack C50 slightly expanded concrete is provided with the ring steel plate in the steel pipe.
Described lower chord 2 adopts prestressed reinforced concrete constructions, and rectangle is adopted in the cross section, according to the circular curve gradual change to from the beam-ends gradual change to span centre.
Described web member 3 adopts single round steel pipe structure, and steel pipe adopts the major diameter welding straight-line joint steel pipe of typing.
Useful technique effect of the present utility model is:
1, the utility model not only can have been given full play to the steel bending resistance and draw the strong and strong advantage of concrete compressive property of performance, and compare with open type trussed bridge in the past, owing to adopted prestressed concrete bridge face system, concrete filled steel tube upper chord and end brace, make rolled steel dosage reduce greatly, cost reduces greatly; The employing of prestressed concrete bridge face system has solved the problem that the diseases such as rut, cracking of paving steel bridge deck take place frequently.
Lateral ties with powerful end floor beam and two truss of middle cross beam reinforcement increase bridge deck rigidity, make at the open type bridge and do not establish under the prerequisite of stull, guarantee the resistance to overturning of bridge; Main compression-member upper chord and end brace adopt the strong encased structures of compressive property, the purpose that reduce the member section size to reach, reduces constructionheightofbridge; For convenient welding, reduce the welding job amount simultaneously, web member adopts steel tubular structure.
2, span centre building height of the present utility model is only for striding 1/50 of footpath, when self building height reduces, also can reduce the place gradient incline, shorten access bridge length and bridge length overall, can realize " low level " of region of no relief speedway main body bridge construction, its span ability is strong, supporting capacity is high, building height is low, speed of application is fast, and can reach the purpose of reduction project overall cost.Can be widely used on the important bridge that attractive in appearance and clear height are had relatively high expectations.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the I--I sectional view of Fig. 1.
Fig. 3 is the II--II sectional view of Fig. 1.
The specific embodiment
The utility model is described in further detail to reach concrete enforcement below in conjunction with accompanying drawing.
Fig. 1, Fig. 2, embodiment illustrated in fig. 3 in, lower support type steel pipe-concrete open type truss composite beam bridge, form by upper chord 1, lower chord 2, girder truss, bridge floor, described lower chord is two parallel concrete structure bars, article two, lower chord 2 directly is erected between the main pier by the bearing 9 on the transition pier 8, and two lower chords 2 laterally are provided with the vertical middle cross beam 5 that is connecting lower chord, middle cross beam 5 spacings are not less than web member 3 and 1/2 of lower chord 2 tie point spacings, and are not more than 6m.Lay bridge deck 10 on the end face of middle cross beam 5; Article two, lower chord 2 two ends are connected with the end floor beam 6 that is parallel to middle cross beam 5; End floor beam is a reinforcement, and is connected the fellowship structure stress with lower chord 2.Lower chord 2 adopts prestressed reinforced concrete constructions, and rectangle is adopted in the cross section, according to the circular curve gradual change to from the beam-ends gradual change to span centre; Bridge deck 10, middle cross beam 5 and end floor beam 6 also are prestressed reinforced concrete construction.
Be respectively equipped with truss on the facade of described two lower chords 2.Truss adopts not the Hua Lunshi triangular web member system with montant, is connecting the web member 3 of forming triangular structure between upper chord 1 lower chord 2 corresponding with it; Web member 3 is equipped with haunched slab 7 with the connecting portion of upper chord 1 for reinforcement; Upper chord 1 two ends are connecting the two ends of corresponding lower chord 2 by end brace 4; Upper chord 1 and end brace 4 adopt single concrete filled steel tube structure, and steel pipe adopts the major diameter welding straight-line joint steel pipe of typing, and casing pack C50 slightly expanded concrete is provided with the ring steel plate in the steel pipe; Web member 3 adopts single round steel pipe structure, and steel pipe adopts the large-diameter welded steel pipe of typing.
Claims (4)
1. lower support type steel pipe-concrete open type truss composite beam bridge, form by upper chord (1), lower chord (2), girder truss, bridge floor, described lower chord is two parallel concrete structure bars, article two, laterally be provided with the vertical middle cross beam (5) that is connecting lower chord between the lower chord, the spacing of described middle cross beam (5) is not less than 1/2 of web member and lower chord tie point spacing, and be not more than 6m, lay bridge deck (10) on middle cross beam (5) end face; Article two, lower chord (2) two ends are connected with the end floor beam (6) that is parallel to middle cross beam (5); Be respectively equipped with truss on the facade of described two lower chords (2), the top of truss is provided with upper chord (1), is connecting the web member (3) of forming triangular structure between upper chord (1) lower chord (2) corresponding with it; The two ends of described upper chord (1) are connecting the two ends of corresponding lower chord (2) by end brace (4); It is characterized in that: described upper chord (1) and end brace (4) are major diameter welding straight-line joint steel pipe.
2. lower support type steel pipe according to claim 1-concrete open type truss composite beam bridge, it is characterized in that: described upper chord (1) and end brace (4) are single round steel pipe structure, steel pipe adopts the major diameter welding straight-line joint steel pipe of typing, casing pack C50 slightly expanded concrete is provided with the ring steel plate in the steel pipe.
3. lower support type steel pipe according to claim 1-concrete open type truss composite beam bridge is characterized in that: described lower chord (2) adopts prestressed reinforced concrete construction, and rectangle is adopted in the cross section, according to the circular curve gradual change to from the beam-ends gradual change to span centre.
4. lower support type steel pipe according to claim 1-concrete open type truss composite beam bridge is characterized in that: described web member (3) adopts single round steel pipe structure, and steel pipe adopts the major diameter welding straight-line joint steel pipe of typing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205721899U CN201891069U (en) | 2010-10-21 | 2010-10-21 | Through steel pipe-concrete open type truss combination beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205721899U CN201891069U (en) | 2010-10-21 | 2010-10-21 | Through steel pipe-concrete open type truss combination beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891069U true CN201891069U (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205721899U Expired - Lifetime CN201891069U (en) | 2010-10-21 | 2010-10-21 | Through steel pipe-concrete open type truss combination beam bridge |
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| CN (1) | CN201891069U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425100A (en) * | 2011-09-20 | 2012-04-25 | 广州市设计院 | Wide-bodied pedestrian overpass erected among buildings |
| CN102535327A (en) * | 2012-02-03 | 2012-07-04 | 西安中交土木科技有限公司 | Through prestress steel truss and concrete combined continuous steel structure bridge and construction method thereof |
| CN102776829A (en) * | 2012-08-16 | 2012-11-14 | 安徽省交通规划设计研究院有限公司 | Steel pipe concrete combined truss bridge |
| CN105625158A (en) * | 2015-05-22 | 2016-06-01 | 柏嘉（西安）工程技术研究院有限公司 | Optimal force type steel truss-concrete combination continuous rigid frame bridge |
| WO2018089558A1 (en) * | 2016-11-08 | 2018-05-17 | University Of Notre Dame Du Lac | Modular truss joint |
| CN109137715A (en) * | 2018-10-23 | 2019-01-04 | 邓泽仲 | A kind of steel structure arch bridge |
| US10370805B2 (en) | 2015-10-13 | 2019-08-06 | University Of Notre Dame Du Lac | Adjustable bolted steel plate connection |
| CN111979891A (en) * | 2020-08-26 | 2020-11-24 | 长安大学 | A kind of semi-penetrating rectangular steel tube concrete composite truss bridge and construction method |
-
2010
- 2010-10-21 CN CN2010205721899U patent/CN201891069U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425100A (en) * | 2011-09-20 | 2012-04-25 | 广州市设计院 | Wide-bodied pedestrian overpass erected among buildings |
| CN102535327A (en) * | 2012-02-03 | 2012-07-04 | 西安中交土木科技有限公司 | Through prestress steel truss and concrete combined continuous steel structure bridge and construction method thereof |
| CN102535327B (en) * | 2012-02-03 | 2014-06-04 | 西安中交土木科技有限公司 | Through prestress steel truss and concrete combined continuous steel structure bridge and construction method thereof |
| CN102776829A (en) * | 2012-08-16 | 2012-11-14 | 安徽省交通规划设计研究院有限公司 | Steel pipe concrete combined truss bridge |
| CN105625158A (en) * | 2015-05-22 | 2016-06-01 | 柏嘉（西安）工程技术研究院有限公司 | Optimal force type steel truss-concrete combination continuous rigid frame bridge |
| US10370805B2 (en) | 2015-10-13 | 2019-08-06 | University Of Notre Dame Du Lac | Adjustable bolted steel plate connection |
| US10538887B2 (en) | 2015-10-13 | 2020-01-21 | University Of Notre Dame Du Lac | Adjustable connection for structural members |
| WO2018089558A1 (en) * | 2016-11-08 | 2018-05-17 | University Of Notre Dame Du Lac | Modular truss joint |
| US10626611B2 (en) | 2016-11-08 | 2020-04-21 | University Of Notre Dame Du Lac | Modular truss joint |
| CN109137715A (en) * | 2018-10-23 | 2019-01-04 | 邓泽仲 | A kind of steel structure arch bridge |
| CN111979891A (en) * | 2020-08-26 | 2020-11-24 | 长安大学 | A kind of semi-penetrating rectangular steel tube concrete composite truss bridge and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI TRANSPORT CONSULTING + DESIGN INSTITUTE CO., Free format text: FORMER NAME: ANHUI TRANSPORTATION CONSULTING + DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180 Patentee after: ANHUI TRAFFIC PLANNING AND DESIGN INSTITUTE CO., LTD. Address before: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180 Patentee before: Anhui Communications Consulting & Design Institue |
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| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
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| CX01 | Expiry of patent term |